In which example is the term “solution” least appropriate?
Answer and explanation
Correct answer: Separate layers of water and oil
A solution must be homogeneous, with its components uniformly distributed. Water and oil do not mix uniformly; they form separate layers because of their immiscibility, so the mixture is heterogeneous and is not normally called a solution. Completely dissolved sugar in water is a liquid solution, air is a gaseous solution, and brass is a solid solution or alloy.
Frequently asked questions
What is the correct answer to this question?
Separate layers of water and oil
Why is this the correct answer?
A solution must be homogeneous, with its components uniformly distributed. Water and oil do not mix uniformly; they form separate layers because of their immiscibility, so the mixture is heterogeneous and is not normally called a solution. Completely dissolved sugar in water is a liquid solution, air is a gaseous solution, and brass is a solid solution or alloy.
Which subject and chapter does this question cover?
This is a Class 9 Science question. Chapter: Exploring Mixtures and Their Separation. Topic: Solutions.
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